如何利用BME680實現智能家居控制中心的設計
該項目具有檢測室內環境數據和發送電子郵件、開燈按鈕、體感照明屏等功能。
經過不斷的踩坑學習，初代簡易智能家居中控系統已經完成，大部分功能已經完成，但是有些功能WIO終端沒有實現。一方面是因為代碼量太大，會給WIO終端帶來很大的“壓力”；另一方面，我的技術還不夠，還得繼續學習，尋找解決方案。
首先介紹一下我最初的想法：
WIO終端是一款高度集成的開發板。它配備了液晶顯示屏、三個按鈕、一個五向開關、麥克風、揚聲器、加速度傳感器、紅外發射器等，甚至可以與樹莓派和 Jetson nano 結合使用。作為家居的“大腦”，這些硬件非常實用。因此，在智能家居的中控系統中，我選擇WIO終端作為這個系統的核心。
未來，家里應該有一個智能管家。這個智能管家就是我現在做的簡單版。有了它，您就可以在家中獲取準確實時的溫度、濕度、光照強度等數據。不僅如此，它還像一個“萬能”遙控器，可以幫助你控制家中的電器。當然，它應該像智能音箱一樣，能夠理解我們給它的指令并響應我們！
提前準備
在這個項目的過程中，我第一次使用了開發板WIO終端：
不知為何，在WIO終端上使用grow-temperature 濕度壓力氣體傳感器時，接收不到數據，只好轉身實現：
使用Django搭建一個簡單的數據中心（基于Grove——溫度濕度壓力氣體傳感器）
重回正軌，實現數據展示的主要功能：
使用WIO終端通過HTTP請求獲取并顯示傳感器實時數據
下一步就是完善其他三個功能，我主要通過python實現
完善系統功能
前面我簡單提到了一些WIO終端上沒有實現的功能的原因，具體原因我沒有細說。畢竟剛開始做，所以打算先實現功能。至于實現方式，我想在二代系統中改進一下
通過 WIO 端子輸出狀態
我要表達的狀態是讀取可配置按鈕的狀態（是否按下按鈕）和麥克風的數據（數據也可以代表狀態）
對于WIO終端來說，簡單的輸出這些數據還是比較簡單的
補充 setup() 中的管腳定義：
pinMode(WIO_MIC, INPUT);
pinMode(WIO_KEY_A, INPUT_PULLUP);
pinMode(WIO_KEY_B, INPUT_PULLUP);
pinMode(WIO_KEY_C, INPUT_PULLUP);
補充loop()中的if條件語句：
int val_first = analogRead(WIO_MIC);
int val_next = analogRead(WIO_MIC);
if (abs(val_first - val_next) >= 100){
Serial.println("send message!");
}
if (digitalRead(WIO_KEY_A) == LOW) {
Serial.println("A Key pressed");
}
if (digitalRead(WIO_KEY_B) == LOW) {
Serial.println("B Key pressed");
}
if (digitalRead(WIO_KEY_C) == LOW) {
Serial.println("C Key pressed");
}
當WIO終端連接PC時，PC會讀取串口的數據，并在讀取相應的輸出時采取相應的動作
至此，我們已經完成了關于 Arduino 的所有代碼。整理一下代碼，分享給大家。
#include
#include
#include"LIS3DHTR.h"
#include"Free_Fonts.h"
#include"TFT_eSPI.h"
TFT_eSPI tft;
LIS3DHTR lis;
WiFiClient client;
const char* ssid = "Your WiFi account";
const char* password = "Your WiFi password";
const char* server = "192.168.1.102"; // Server URL
String data;
float accelerator_readings[3];
void setup() {
//Initialize serial and wait for port to open:
Serial.begin(115200);
delay(100);
pinMode(WIO_MIC, INPUT);
pinMode(WIO_KEY_A, INPUT_PULLUP);
pinMode(WIO_KEY_B, INPUT_PULLUP);
pinMode(WIO_KEY_C, INPUT_PULLUP);
lis.begin(Wire1);
lis.setOutputDataRate(LIS3DHTR_DATARATE_25HZ);
lis.setFullScaleRange(LIS3DHTR_RANGE_2G);
float x_raw = lis.getAccelerationX();
float y_raw = lis.getAccelerationY();
float z_raw = lis.getAccelerationZ();
accelerator_readings[0] = x_raw; //store x-axis readings
accelerator_readings[1] = y_raw; //store y-axis readings
accelerator_readings[2] = z_raw; //store z-axis readings
// Serial.print("Attempting to connect to SSID: ");
// Serial.println(ssid);
WiFi.begin(ssid, password);
tft.begin();
tft.setRotation(3);
tft.fillScreen(TFT_BLACK);
tft.setFreeFont(FMB12);
tft.setCursor((320 - tft.textWidth("Connecting to Wi-Fi.."))/2, 120);
tft.print("Connecting to Wi-Fi..");
// attempt to connect to Wifi network:
while (WiFi.status() != WL_CONNECTED) {
// Serial.print(".");
// wait 1 second for re-trying
delay(1000);
}
// Serial.print("Connected to ");
// Serial.println(ssid);
tft.fillScreen(TFT_BLACK);
tft.setCursor((320 - tft.textWidth("Connected!"))/2, 120);
tft.print("Connected!");
getFirstData();
}
void loop()
{
int val_first = analogRead(WIO_MIC);
float x_raw = lis.getAccelerationX();
float y_raw = lis.getAccelerationY();
float z_raw = lis.getAccelerationZ();
int val_next = analogRead(WIO_MIC);
if (abs(val_first - val_next) >= 100){
Serial.println("send message!");
}
if (digitalRead(WIO_KEY_A) == LOW) {
Serial.println("A Key pressed");
}
if (digitalRead(WIO_KEY_B) == LOW) {
Serial.println("B Key pressed");
}
if (digitalRead(WIO_KEY_C) == LOW) {
Serial.println("C Key pressed");
}
if (abs(accelerator_readings[0] - x_raw) >= 0.1 && abs(accelerator_readings[1] - y_raw) >= 0.1 && abs(accelerator_readings[2] - z_raw) >= 0.1){
// Turning on the LCD backlight
digitalWrite(LCD_BACKLIGHT, HIGH);
getFirstData();
delay(3000);
getLastData();
delay(3000);
}
else {
// Turning off the LCD backlight
digitalWrite(LCD_BACKLIGHT, LOW);
delay(500);
}
for (uint8_t i = 0; i<3; i++){
accelerator_readings[i] = 0.0; //this is used to remove the first read variable
}
accelerator_readings[0] = x_raw; //store x-axis readings
accelerator_readings[1] = y_raw; //store y-axis readings
accelerator_readings[2] = z_raw; //store z-axis readings
}
void getFirstData() {
// Serial.println("\nStarting connection to server...");
if (!client.connect(server, 9000)) {
// Serial.println("Connection failed!");
tft.fillScreen(TFT_BLACK);
tft.setCursor((320 - tft.textWidth("Connection failed!"))/2, 120);
tft.print("Connection failed!");
} else {
// Serial.println("Connected to server!");
// Make a HTTP request:
String postRequest =(String)("GET ") + "/ HTTP/1.1\r\n" + "Connection: close\r\n\r\n";
// Serial.println(postRequest);
client.print(postRequest);
while (client.connected()) {
String line = client.readStringUntil('\n');
if (line == "\r") {
// Serial.println("headers received");
break;
}
}
while(client.available())
{
String line = client.readStringUntil('\r');
data = line;
}
// Serial.println(data);
client.stop();
// Serial.println("closing connection");
}
//ArduinoJson to parse data, plesae check ArduinoJson for more info
const size_t capacity = JSON_OBJECT_SIZE(5) + 100;
DynamicJsonDocument doc(capacity);
deserializeJson(doc, data);
float temperature = doc["temperature"];
float pressure = doc["pressure"];
float humidity = doc["humidity"];
// -----------------LCD---------------------
tft.setFreeFont(FF17);
tft.setTextColor(tft.color565(224,225,232));
tft.drawString("Current Data At Home",20,10);
tft.fillRoundRect(10, 45, 300, 55, 5, tft.color565(40,40,86));
tft.fillRoundRect(10, 105, 300, 55, 5, tft.color565(40,40,86));
tft.fillRoundRect(10, 165, 300, 55, 5, tft.color565(40,40,86));
tft.setFreeFont(FM9);
tft.drawString("temperature:", 75, 50);
tft.drawString("pressure:",75, 110);
tft.drawString("humidity:",75, 170);
tft.setFreeFont(FMB12);
tft.setTextColor(TFT_RED);
tft.drawFloat(temperature,2 , 140, 75);
tft.setTextColor(tft.color565(224,225,232));
tft.drawFloat(pressure,2 , 140, 135);
tft.setTextColor(TFT_GREEN);
tft.drawFloat(humidity,2 , 140, 195);
tft.drawString("℃", 210, 75);
tft.drawString("KPa",210, 135);
tft.drawString("%",210, 195);
}
void getLastData() {
// Serial.println("\nStarting connection to server...");
if (!client.connect(server, 9000)) {
// Serial.println("Connection failed!");
tft.fillScreen(TFT_BLACK);
tft.setCursor((320 - tft.textWidth("Connection failed!"))/2, 120);
tft.print("Connection failed!");
} else {
// Serial.println("Connected to server!");
// Make a HTTP request:
String postRequest =(String)("GET ") + "/ HTTP/1.1\r\n" + "Connection: close\r\n\r\n";
// Serial.println(postRequest);
client.print(postRequest);
while (client.connected()) {
String line = client.readStringUntil('\n');
if (line == "\r") {
// Serial.println("headers received");
break;
}
}
while(client.available())
{
String line = client.readStringUntil('\r');
data = line;
}
// Serial.println(data);
client.stop();
// Serial.println("closing connection");
}
//ArduinoJson to parse data, plesae check ArduinoJson for more info
const size_t capacity = JSON_OBJECT_SIZE(5) + 100;
DynamicJsonDocument doc(capacity);
deserializeJson(doc, data);
float humidity = doc["humidity"];
float gas = doc["gas"];
String updataTime = doc["updataTime"];
// -----------------LCD---------------------
tft.setFreeFont(FF17);
tft.setTextColor(tft.color565(224,225,232));
tft.drawString("Current Data At Home",20,10);
tft.fillRoundRect(10, 45, 300, 55, 5, tft.color565(40,40,86));
tft.fillRoundRect(10, 105, 300, 55, 5, tft.color565(40,40,86));
tft.fillRoundRect(10, 165, 300, 55, 5, tft.color565(40,40,86));
tft.setFreeFont(FM9);
tft.drawString("humidity:", 75, 50);
tft.drawString("gas:",75, 110);
tft.drawString("updataTime:",75, 170);
tft.setFreeFont(FMB12);
tft.setTextColor(TFT_RED);
tft.drawFloat(humidity,2 , 140, 75);
tft.setTextColor(tft.color565(224,225,232));
tft.drawFloat(gas,2 , 140, 135);
tft.setTextColor(TFT_GREEN);
tft.drawString(updataTime , 30, 195);
tft.drawString("%", 210, 75);
tft.drawString("Kohms",210, 135);
}
上傳成功后，打開串口監視器：
接下來我們來看看Python的具體實現
使用Python讀取串口數據并做出相應決策
web端增加了保存數據的功能
因為我需要發送郵件，所以我先將傳感器接收到的數據存儲在一個TXT文本文件中。發送郵件時，我可以直接發送這個文本文件
在視圖中在 py 中：
def index(request):
datas = getDatas()
content = {
'temperature':datas[0],
'pressure':datas[1],
'humidity':datas[2],
'gas':datas[3],
'updataTime':datas[4],
}
jsonData = json.dumps(content)
with open("D:\TemperatureHumidityPressureGasData.txt", "w") as fp:
fp.write(jsonData)
return HttpResponse(jsonData)
主要變化是：
with open("D:\TemperatureHumidityPressureGasData.txt", "w") as fp:
fp.write(jsonData)
文件存放路徑可以修改為自己的路徑
打開文本文件，看能否保存成功：
通過紅外模塊控制小夜燈
小夜燈可以遙控控制：
因為WIO終端沒有紅外解碼功能，所以我又買了一個紅外模塊，編解碼合二為一。當然，我還需要一個usb-ttl串口轉換器：
其實這個想法很簡單。讀取遙控器對應按鍵發送的數據，然后用紅外模塊發送出去
可以使用串口調試助手進行解碼，更方便：
串行端口發送它接收到的任何內容。收貨時最好找個比較暗的地方多試幾次
以下是我收集的每個密鑰應該發送的數據（十六進制）：
開燈
send_data = 'FD FD 30 03 53 4B 00 34 17 01 3B 02 65 00 26 00 1E 00 27 00 D9 09 26 00 8A 00 40 02 C3 17 26 00 00 00 21 00 FF FF FF FF 01 22 22 22 22 11 11 11 11 12 11 22 22 21 22 11 13 45 46 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05 76 00 22 DF DF'
提亮
send_data = 'FD FD 30 03 52 47 00 34 16 01 3A 02 66 00 27 00 20 00 27 00 D9 09 25 00 8A 00 41 02 00 00 21 00 FF FF FF FF FF FF FF FF 01 22 22 22 22 11 11 11 12 21 11 22 21 12 22 11 13 45 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 76 3F 6D DF DF '
調光
send_data = 'FD FD 30 03 53 4B 00 34 16 01 3C 02 63 00 27 00 1F 00 27 00 DA 09 25 00 8B 00 3D 02 C4 17 24 00 00 00 20 00 FF FF FF FF 01 22 22 22 22 11 11 11 12 11 11 22 21 22 22 11 13 45 46 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 76 3F 2E DF DF '
要發送紅外線，只需再添加兩行：
send_data = bytes.fromhex(send_data) #先編碼,再發送
infrared_ser.write(send_data)
通過語音控制PC發送郵件
語音不是真正的語音識別。當WIO終端識別到環境音頻信號有波動時，會發送“send message！” 到串口，PC讀取后發送郵件
說話時，音頻信號會有明顯的波動：
發送電子郵件并不難。我把它封裝成一個方法，當時可以直接調用
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.header import Header
def send():
# 第三方 SMTP 服務
mail_host="smtp.qq.com" #設置服務器
mail_user="" #用戶名
mail_pass="" #口令
sender = ''
receivers = [''] # 接收郵件，可設置為你的QQ郵箱或者其他郵箱
#創建一個帶附件的實例
message = MIMEMultipart()
message['From'] = Header("Wio Terimal", 'utf-8')
message['To'] = Header("溫濕度、大氣壓力、可燃氣體檢測數據", 'utf-8')
subject = '當前溫濕度、大氣壓力、可燃氣體檢測數據'
message['Subject'] = Header(subject, 'utf-8')
#郵件正文內容
message.attach(MIMEText('溫濕度、大氣壓力、可燃氣體檢測數據', 'plain', 'utf-8'))
# 構造附件，傳送當前目錄下的 test.txt 文件
att = MIMEText(open('D:\TemperatureHumidityPressureGasData.txt', 'rb').read(), 'base64', 'utf-8')
att["Content-Type"] = 'application/octet-stream'
# 這里的filename可以任意寫，寫什么名字，郵件中顯示什么名字
att["Content-Disposition"] = 'attachment; filename="TemperatureHumidityPressureGasData.txt"'
message.attach(att)
server = smtplib.SMTP_SSL(mail_host, 465) # SMTP協議默認端口是25
server.set_debuglevel(1)
server.login(mail_user, mail_pass)
try:
server.sendmail(sender, receivers, message.as_string())
print ("郵件發送成功")
except smtplib.SMTPException:
print ("Error: 無法發送郵件")
此處的發送者和接收者可以編寫自己的電子郵件。嘗試發送電子郵件進行測試：
預覽此 TXT 文件：
通過語音合成回復用戶
Windows系統下，可以直接調用系統的語音包：
import win32com.client
speaker = win32com.client.Dispatch("SAPI.SpVoice")
text = "輸入要語音合成的內容"
speaker.Speak(text)
完整的程序
代碼中的串口需要改成自己的串口：
Com14是WIO終端開發板
Com15是紅外模塊
Com19是seeeduino v4 2開發板
每次插上后，可能會因為電腦上的USB接口不夠，導致串口發生變化。我買了一個 USB 擴展塢
import serial
import re
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.header import Header
import win32com.client
speaker = win32com.client.Dispatch("SAPI.SpVoice")
def send():
# 第三方 SMTP 服務
mail_host="smtp.qq.com" #設置服務器
mail_user="2733821739@qq.com" #用戶名
mail_pass="" #口令
sender = '2733821739@qq.com'
receivers = ['2733821739@qq.com'] # 接收郵件，可設置為你的QQ郵箱或者其他郵箱
#創建一個帶附件的實例
message = MIMEMultipart()
message['From'] = Header("Wio Terimal", 'utf-8')
message['To'] = Header("溫濕度、大氣壓力、可燃氣體檢測數據", 'utf-8')
subject = '當前溫濕度、大氣壓力、可燃氣體檢測數據'
message['Subject'] = Header(subject, 'utf-8')
#郵件正文內容
message.attach(MIMEText('溫濕度、大氣壓力、可燃氣體檢測數據', 'plain', 'utf-8'))
# 構造附件，傳送當前目錄下的 test.txt 文件
att = MIMEText(open('D:\TemperatureHumidityPressureGasData.txt', 'rb').read(), 'base64', 'utf-8')
att["Content-Type"] = 'application/octet-stream'
# 這里的filename可以任意寫，寫什么名字，郵件中顯示什么名字
att["Content-Disposition"] = 'attachment; filename="TemperatureHumidityPressureGasData.txt"'
message.attach(att)
server = smtplib.SMTP_SSL(mail_host, 465) # SMTP協議默認端口是25
server.set_debuglevel(1)
server.login(mail_user, mail_pass)
try:
server.sendmail(sender, receivers, message.as_string())
print ("郵件發送成功")
speaker = win32com.client.Dispatch("SAPI.SpVoice")
text = "Message sent successfully"
speaker.Speak(text)
except smtplib.SMTPException:
print ("Error: 無法發送郵件")
infrared_ser = serial.Serial('COM10', 9600, timeout=0.2)
Wio_terminal = serial.Serial('COM14', 115200, timeout=0.2)
# 接收返回的信息
while True:
strs = Wio_terminal.readline().decode('utf-8')
if strs.strip()!='':
print(strs)
if (re.match(r"C",strs)):
send_data = 'FD FD 30 03 53 4B 00 34 17 01 3B 02 65 00 26 00 1E 00 27 00 D9 09 26 00 8A 00 40 02 C3 17 26 00 00 00 21 00 FF FF FF FF 01 22 22 22 22 11 11 11 11 12 11 22 22 21 22 11 13 45 46 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 05 76 00 22 DF DF'
send_data = bytes.fromhex(send_data)
infrared_ser.write(send_data)
text = "OK executed"
speaker.Speak(text)
elif (re.match(r"B",strs)):
send_data = 'FD FD 30 03 52 47 00 34 16 01 3A 02 66 00 27 00 20 00 27 00 D9 09 25 00 8A 00 41 02 00 00 21 00 FF FF FF FF FF FF FF FF 01 22 22 22 22 11 11 11 12 21 11 22 21 12 22 11 13 45 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 76 3F 6D DF DF '
send_data = bytes.fromhex(send_data)
infrared_ser.write(send_data)
text = "Brightness up"
speaker.Speak(text)
elif (re.match(r"A",strs)):
send_data = 'FD FD 30 03 53 4B 00 34 16 01 3C 02 63 00 27 00 1F 00 27 00 DA 09 25 00 8B 00 3D 02 C4 17 24 00 00 00 20 00 FF FF FF FF 01 22 22 22 22 11 11 11 12 11 11 22 21 22 22 11 13 45 46 F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 76 3F 2E DF DF '
send_data = bytes.fromhex(send_data)
infrared_ser.write(send_data)
text = "Brightness down"
speaker.Speak(text)
elif (re.match(r"send",strs)):
try:
send()
except:
text = "Failed to send mail. Please try again later"
speaker.Speak(text)
infrared_ser.close()
Wio_terminal.close()
未來的想法
目前的系統只是一個非常簡單的第一代版本。往后我們可能會考慮使用云平臺存儲傳感器采集的溫度、濕度、光照強度、紫外線強度等數據，制作一個APP，讓用戶出門在外就可以知道家里的情況。
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